"There was a deep hidden love between brothers that was then polluted and distorted by the events of the first film," Hiddleston said. "It's something that Thor continues to appeal to, even though the rest of the Avengers dismiss Loki as a psychopath.

"In this situation [in Thor: The Dark World], Thor has let go of that affection, and that puts Loki in a very different position."

Jackass Presents: Bad Grandpa held strong in second position over the weekend with $11.3m, while Free Birds and Last Vegas were in third and fourth place respectively.